Plastic part punching jig

By designing an automated punching fixture for plastic parts, the problems of low efficiency and product damage caused by manual removal of sprue channels were solved, achieving fast and precise punching results and improving production efficiency and product quality.

CN223812293UActive Publication Date: 2026-01-20NENGDAO PRECISION ZHUHAI CO LTD
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Patent Information

Application Number
CN202520153648.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-22
Publication Date
2026-01-20
Estimated Expiration
2035-01-22

AI Technical Summary

Technical Problem

In existing technologies, manually removing the sprue channels of plastic parts is inefficient and can easily damage the product, resulting in poor production efficiency and product quality.

Method used

Design a plastic part punching fixture, including an upper mold base, a lower mold base, a positioning base, and a cutting blade structure. The upper mold base is driven to move downward by a cylinder to achieve automated punching. Combined with the flow channel positioning groove and the limit block, accurate positioning and stability are ensured.

Benefits of technology

It enables rapid and precise punching of plastic parts, improves production efficiency, ensures smooth cuts, and enhances product quality and aesthetics.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a plastic part punching jig, and relates to the technical field of jigs, the plastic part punching jig comprises a mold frame, an upper mold base and a lower mold base, the upper mold base and the lower mold base are arranged on the mold frame, the upper mold base is movably arranged above the lower mold base, a positioning base is arranged at the upper end of the lower mold base, an upper cutter is fixedly arranged on the upper mold base, and a lower cutter is fixedly arranged on the lower mold base. A lower cutter corresponding to the upper cutter is fixedly arranged on the positioning seat, a runner positioning groove and a product blanking groove are formed in the positioning seat, and a limiting block matched with a product in shape is fixedly arranged on the positioning seat; according to the jig, plastic parts can be rapidly punched, manual punching is not needed, the production efficiency is effectively improved, notches of punched products are smooth and flat, and the quality and attractiveness of the products are guaranteed; and in addition, the limiting block matched with the product in shape is arranged, the limiting block abuts against and limits the product, the product can be further prevented from shifting in the punching process, and the punching accuracy and stability are improved.
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Description

TECHNICAL FIELD

[0001] The application relates to the technical field of jigs, in particular to a plastic part punching jig. BACKGROUND

[0002] Injection molding is a method for producing industrial products, and a plastic product after injection molding is connected with a water gap runner, and part of the product needs to be separated during processing, and the water gap runner needs to be recycled and remelted; the current manual removal method is not only low in efficiency, but also prone to burrs or damage to the product during operation, resulting in poor overall appearance, which has an adverse effect on the production efficiency and product quality of the workshop. SUMMARY

[0003] The purpose of the embodiment of the application is to provide a plastic part punching jig, which can solve the technical problem that the current manual removal method is not only low in efficiency, but also prone to burrs or damage to the product during operation, resulting in poor overall appearance, which has an adverse effect on the production efficiency and product quality of the workshop.

[0004] The plastic part punching jig provided by the embodiment of the application comprises a mold frame, an upper mold base and a lower mold base arranged on the mold frame, the upper mold base is movably arranged above the lower mold base, the upper end of the lower mold base is provided with a positioning seat, the upper mold base is fixedly provided with an upper cutting knife, the positioning seat is fixedly provided with a lower cutting knife corresponding to the upper cutting knife, the positioning seat is provided with a runner positioning groove and a product blanking groove, and the positioning seat is fixedly provided with a limiting block matched with the shape of the product.

[0005] The lower mold base is provided with a blanking hole corresponding to the product blanking groove.

[0006] The bottom of the blanking hole is in communication with a blanking pipe.

[0007] The upper mold base is fixedly provided with a limiting column capable of abutting against the runner.

[0008] The upper mold base is fixedly provided with a guide column, and the positioning seat is provided with a guide hole matched with the guide column.

[0009] The upper mold base is installed on the mold frame through bolts, the positioning seat is installed on the lower mold base through bolts, and the lower mold base is installed on the mold frame through bolts.

[0010] The beneficial effects of the utility model are as follows:

[0011] The utility model provides a kind of plastic part punching jig, when using, the plastic part to be removed is placed on positioning seat, and make runner be located in runner positioning groove and product be located in product blanking groove, subsequently by external cylinder drives upper die holder to go down, upper die holder drives upper cutter to go down and be close to lower cutter, upper cutter and lower cutter cooperate and use plastic part to punch, product and runner can be separated, product subsequently falls into product blanking groove, subsequently reset upper die holder and take away runner waste can carry out next punching;The jig can be quickly punched to plastic part, without manual punching, effectively improve production efficiency, and the incision of well-punched product is smooth and even, guarantee product quality and aesthetic property;The jig can ensure accurate positioning of plastic part in punching process by being provided with runner positioning groove, avoid the poor punching caused by positional deviation, plus being provided with the limiting block compatible with the shape of product, limiting block abuts against and limits product, can further prevent product from being displaced when punching, improve punching accuracy and stability. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced below, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0013] Figure 1 It is a schematic view of the overall structure in some embodiments of the present application.

[0014] Figure 2 It is a schematic view of the overall structure in some embodiments of the present application from another perspective.

[0015] Figure 3 It is a schematic view of the lower die holder structure with plastic parts placed in some embodiments of the present application.

[0016] Figure 4 It is a schematic view of the lower die holder structure without plastic parts placed in some embodiments of the present application.

[0017] Figure 5 It is a schematic view of the upper die holder structure in some embodiments of the present application.

[0018] The reference signs are as follows:

[0019] 1, die frame;

[0020] 2, upper die holder; 21, upper cutter; 22, limiting post; 23, guide post;

[0021] 3, lower die holder; 31, blanking hole; 32, blanking pipe;

[0022] 4, positioning seat; 41, lower cutter; 42, runner positioning groove; 43, product falling groove; 44, limiting block; 45, guide hole;

[0023] 5, runner;

[0024] 6, product. DETAILED DESCRIPTION

[0025] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0027] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0028] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0029] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0030] In the description of the present application, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "set", "install", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] As shown in Figures 1 to 5 The present application provides a plastic part punching jig, which comprises a mold frame 1, an upper die seat 2 and a lower die seat 3 arranged on the mold frame 1, the upper die seat 2 is movably arranged above the lower die seat 3, the upper end of the lower die seat 3 is provided with a positioning seat 4, the upper die seat 2 is fixedly provided with an upper cutter 21, the positioning seat 4 is fixedly provided with a lower cutter 41 corresponding to the upper cutter 21, the positioning seat 4 is provided with a flow channel positioning groove 42 and a product blanking groove 43, and the positioning seat 4 is fixedly provided with a limiting block 44 matched with the shape of the product 6.

[0032] In use, the plastic part to be removed is placed on the positioning seat 4, and the flow channel 5 is located in the flow channel positioning groove 42 and the product 6 is located in the product blanking groove 43, then the upper die seat 2 is driven downward by the external cylinder, the upper die seat 2 drives the upper cutter 21 to move downward and close to the lower cutter 41, the upper cutter 21 and the lower cutter 41 cooperate to punch the plastic part, so that the product 6 and the flow channel 5 are separated, the product 6 then falls into the product blanking groove 43, then the upper die seat 2 is reset and the flow channel 5 waste is taken out for the next punching.

[0033] The jig can quickly punch the plastic part without manual punching, effectively improving the production efficiency, and the cut of the punched product 6 is smooth and flat, ensuring the quality and appearance of the product 6; the jig is provided with the flow channel positioning groove 42, which can ensure the accurate positioning of the plastic part during punching, avoid poor punching caused by position deviation, and further prevent the product 6 from shifting during punching by setting the limiting block 44 matched with the shape of the product 6, which can further prevent the product 6 from shifting during punching, improve the punching accuracy and stability.

[0034] As shown in Figure 3 and 4 In the present embodiment, the lower die seat 3 is provided with a blanking hole 31 corresponding to the product blanking groove 43; in use, the separated product 6 then falls into the product blanking groove 43, then passes through the blanking hole 31 and is discharged from the jig.

[0035] As shown in Figures 1 to 4As shown, in this embodiment, a discharge pipe 32 is connected to the bottom of the discharge hole 31; the separated product 6 then falls into the product discharge trough 43, and the product 6 then passes through the discharge hole 31 and is discharged from the fixture into the collection device along the discharge pipe 32; the discharge pipe 32 enables the punched product 6 to fall into the collection device quickly and smoothly, improving production efficiency.

[0036] like Figure 5 As shown in this embodiment, a limiting post 22 that can abut against the flow channel 5 is fixedly provided on the upper mold base 2. In use, the upper mold base 2 is driven to move down by an external cylinder, and the upper mold base 2 drives the limiting post 22 to move down to abut against the flow channel 5 located in the flow channel positioning groove 42. The upper mold base 2 simultaneously drives the upper cutter 21 to move down and approach the lower cutter 41. By setting the limiting post 22, the fixture abuts against and limits the flow channel 5, which can further prevent the plastic part from shifting during punching and improve the punching accuracy and stability.

[0037] like Figures 3 to 5 As shown, in this embodiment, a guide post 23 is fixedly provided on the upper mold base 2, and a guide hole 45 is provided on the positioning base 4 to cooperate with the guide post 23; the cooperation between the guide post 23 and the guide hole 45 facilitates the up and down movement of the upper mold base 2.

[0038] In this embodiment, the upper mold base 2 is bolted to the mold frame 1, the positioning seat 4 is bolted to the lower mold base 3, and the lower mold base 3 is bolted to the mold frame 1. This detachable connection method not only facilitates the assembly and disassembly of the fixture, but also facilitates subsequent debugging and maintenance.

[0039] Working principle: When using the plastic part punching fixture provided in this application, the plastic part to be removed is placed on the positioning seat 4, and the runner 5 is located in the runner positioning groove 42 and the product 6 is located in the product discharge groove 43. Then, the upper mold seat 2 is driven to move down by the external cylinder. The upper mold seat 2 drives the limiting post 22 to move down to abut against the runner 5 located in the runner positioning groove 42. The upper mold seat 2 simultaneously drives the upper cutter 21 to move down close to the lower cutter 41. The upper cutter 21 and the lower cutter 41 work together to punch the plastic part, which can separate the product 6 and the runner 5. The separated product 6 then falls into the product discharge groove 43. The product 6 then passes through the discharge hole 31 and is discharged from the fixture into the collection device along the discharge pipe 32. Then, the upper mold seat 2 is reset and the waste material of the runner 5 is removed, and the next punching can be performed.

[0040] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A plastic part punching jig, characterized in that: The utility model relates to a mould frame (1) and set up on the mould frame (1) upper die holder (2) and lower die holder (3), upper die holder (2) is movably arranged in the upper of lower die holder (3), the upper end of lower die holder (3) is provided with positioning seat (4), the upper die holder (2) is fixedly provided with upper cutting knife (21), the positioning seat (4) is fixedly provided with the lower cutting knife (41) corresponding with upper cutting knife (21), the positioning seat (4) is opened with flow channel positioning groove (42) and product blanking groove (43), the positioning seat (4) is fixedly provided with the limit block (44) with product (6) shape is adapted.

2. The plastic part punching jig according to claim 1, wherein: The lower die holder (3) is provided with a blanking hole (31) corresponding to the product blanking groove (43).

3. The plastic part punching jig according to claim 2, wherein: The bottom of the blanking hole (31) is provided with a blanking pipe (32) in communication.

4. The plastic part punching jig according to claim 1, wherein: The upper die holder (2) is fixedly provided with a limiting column (22) abutting against the flow channel (5).

5. The plastic part punching jig according to claim 1, wherein: The upper die holder (2) is fixedly provided with a guide column (23), and the positioning seat (4) is provided with a guide hole (45) used in cooperation with the guide column (23).

6. The plastic part punching jig according to claim 1, wherein: The upper die holder (2) is installed on the mould frame (1) by bolts, the positioning seat (4) is installed on the lower die holder (3) by bolts, and the lower die holder (3) is installed on the mould frame (1) by bolts.